Cisco introdues it as latest phone. But customer faces many issues. And there is no much support document available for these phones.

As I know all the customer had different issues with this Phone.

Currently I am facing problem in one of the 9971 phone, missed call details not displying on the phone. Just "More" button bottom of the screen. But if we restart the phone, missed call numbers appear on the screen display. After few days same problem comes back.......! Cisco's SIP version........!!!!!!

Cisco introdues it as latest phone. But customer faces many issues. And there is no much support document available for these phones.

As I know all the customer had different issues with this Phone.

Currently I am facing problem in one of the 9971 phone, missed call details not displying on the phone. Just "More" button bottom of the screen. But if we restart the phone, missed call numbers appear on the screen display. After few days same problem comes back.......!

We can not certify whole Cisco IPT product line up as instable if we have some issue with ip phone. Let us frist see where is the problem. Let me know the firmware of the IP phone which you are running.

We also ran into the same issue. We have multiple nodes and FDEMELLO's suggestion helped. The only other step we forgot to do was to go into the CUCM and copy over the new SIPxxxx file name (without the .load .spn etc extension) in place of the old load name. Device > Device Settings > Device Defaults